SY10ELT28ZI

Translators, Level Shifters Overview

The SY10ELT28ZI is a differential PECL-to-TTL translator and TTL-to-differential PECL translator in a single package. It operates on a +5V power supply with an industrial temperature range of –40 °C to +85°C. The device guarantees AC parameters including f MAX > 160MHz for TTL and < 5.5ns PECL-to-TTL propagation delay. Rise/fall times are less than 1.5ns for PECL outputs, while TTL-to-PECL propagation delay is under 1.3ns. It features internal PECL input pulldown resistors and is available in an 8-pin MSOP or SOIC package.

Translators, Level Shifters Feature Summary

• Dual translation design supporting both PECL-to-TTL and TTL-to-PECL signal conversion within one component
• QTTL output defaults low when inputs are left open or below 1.3V, while QECL output defaults high
• Internal PECL input pulldown resistors eliminate the need for external components
• Requires only +5V and ground connections due to PECL level compatibility

Translators, Level Shifters Applications

• Sending and receiving signals across backplanes
• Interfacing between TTL logic circuits and differential PECL systems
• High-speed data acquisition systems requiring voltage level translation

Translators, Level Shifters Procurement Notes

Verify that the specific ordering code matches the required package type (MSOP or SOIC) and operating temperature range (Industrial or Commercial). Confirm RoHS compliance status as older Micrel datasheets may list non-compliant variants. Ensure the design accounts for the absolute maximum ratings regarding input voltage and power supply limits to prevent permanent device damage during operation.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between single-ended TTL and differential PECL signals is required in a compact form factor. Consider the guaranteed propagation delays and rise/fall times to ensure timing requirements are met for the target application frequency. Verify that the 8-pin package fits the PCB layout constraints and that the thermal resistance characteristics are suitable for the expected ambient conditions.

Translators, Level Shifters Part Context

The SY10ELT28 belongs to the 10/100ELT series of translators manufactured by Micrel, now part of Microchip Technology. This series provides solutions for interfacing different logic families without complex external circuitry. The ELT28 specifically addresses the need for simultaneous two-way translation, making it distinct from unidirectional translators found in other product lines.

Translators, Level Shifters Replacement Considerations

Check for updated versions of the SY10ELT28 or SY100ELT28 with revised suffixes indicating improved manufacturing processes. Verify pinout compatibility if considering alternative dual translators from other manufacturers. Ensure any substitute supports the same +5V supply requirement and offers comparable propagation delay specifications.